package com.wxz.sanguo.test;

import java.awt.BorderLayout;
import java.awt.event.AdjustmentEvent;
import java.awt.event.AdjustmentListener;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollBar;

public class SwingScrollBarExample extends JPanel {
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	JLabel label;

	public SwingScrollBarExample() {
		super(true);
		

		label = new TestJLable();
		setLayout(new BorderLayout());

		JScrollBar hbar = new JScrollBar(JScrollBar.HORIZONTAL, 30, 20, 0, 300);
		JScrollBar vbar = new JScrollBar(JScrollBar.VERTICAL, 30, 40, 0, 300);

		hbar.setUnitIncrement(2);
		hbar.setBlockIncrement(1);

		hbar.addAdjustmentListener(new MyAdjustmentListener());
		vbar.addAdjustmentListener(new MyAdjustmentListener());

		add(hbar, BorderLayout.SOUTH);
		add(vbar, BorderLayout.EAST);
		add(label, BorderLayout.CENTER);
	}

	class MyAdjustmentListener implements AdjustmentListener {
		public void adjustmentValueChanged(AdjustmentEvent e) {
			label.setText("    New Value is " + e.getValue() + "      ");
			repaint();
		}
	}

	public static void main(String s[]) {
		JFrame frame = new JFrame("Scroll Bar Example");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setContentPane(new SwingScrollBarExample());
		frame.setSize(200, 200);
		frame.setVisible(true);
	}

}
